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National Science Review 2020年第2期7卷 305-314页

作者： shasha zheng Qing Li Huaiguo Xue Huan Pang Qiang Xu School of Chemistry and Chemical Engineering and Institute for Innovative Materials and Energy Yangzhou University AIST-Kyoto University Chemical Energy Materials Open Innovation Laboratory National Institute of Advanced Industrial Science and Technology

Most metal-organic frameworks(MOFs) hardly maintain their physical and chemical properties after exposure to alkaline aqueous solutions,thus precluding their use as potential electrode materials for electrochemical energy storage ***,we present the design and synthesis of a highly alkaline-stable metal oxide@MOF composite,CoOnanocube@Co-MOF(CoO@Co-MOF),via a controllable and facile one-pot hydrothermal method under highly alkaline *** obtained composite possesses exceptional alkaline stability,retaining its original structure in 3.0 M KOH for at least 15 *** from the exceptional alkaline stability,unique structure,and larger surface area,the CoO@Co-MOF composite shows a specific capacitance as high as 1020 F gat 0.5 A gand a high cycling stability with only 3.3% decay after 5000 cycles at 5 A *** as-constructed solid-state flexible device exhibits a maximum energy density of 21.6 mWh cm.

关键词： metal–organic framework metal oxide composite electrochemical energy storage flexible supercapacitor

Fluorinated pillared-layer metal-organic framework microrods for improved electrochemical cycling stability

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Chinese Chemical Letters 2021年第12期32卷 3817-3820页

作者： shasha zheng Yue Ru Huaiguo Xue Huan Pang School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225009China

Developing metal-organic framework(MOF)-based materials with good cyclic stability is the key to their practical application. Fluorinated organic compounds are usually highly chemically stability due to the high electronegativity of fluorine. Also, the pillared-layer structures based on coordination bonds have better structure and thermal stability than those based on hydrogen bonds. Herein, the fluorinated pillared-layer [Ni(2,3,4,5-tetrafluorobenzoic acid)(4,4-bipyridine)]nMOF([Ni(TFBA)(Bpy)]n) materials were constructed through a facile room-temperature solution reaction and used as electrode materials for supercapacitors. Surprisingly, the size/morphology of Ni(TFBA)(Bpy)nMOFs could be adjusted by varying the synthesis time. Benefting from the short ion diffusion length, unique pillar-layer structure, and strong intercomponent synergy of organic ligands, the Ni(TFBA)(Bpy)nMOF microrods showed a higher electrochemical energy storage capability than bulk MOFs. At the same time, compared to the non-fluorinated [Ni(benzoic acid)(Bpy)]nMOFs(31.5% capacitance decay), the fluorinated Ni(TFBA)(Bpy)n MOFs have a higher cycle stability with only 2.6% capacitance loss after 5000 cycles at 3 m A/cm^(2).

关键词： Fluorinated metal-organic framework Pillar-layer structure Microrod Cyclic stability Electrochemical energy storage Supercapacitor

Dual-ligand and hard-soft-acid-base strategies to optimize metal-organic framework nanocrystals for stable electrochemical cycling performance

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National Science Review 2022年第7期9卷 88-96页

作者： shasha zheng Yan Sun Huaiguo Xue Pierre Braunstein Wei Huang Huan Pang School of Chemistry and Chemical Engineering Yangzhou University Institut de Chimie UMR 7177 Universite′ de StrasbourgCNRS State Key Laboratory of Organic Electronics and Information Displays and Institute of Advanced Materials (IAM)Nanjing University of Posts and Telecommunications Frontiers Science Center for Flexible Electronics (FSCFE) MIIT Key Laboratory of Flexible Electronics (KLo FE)Northwestern Polytechnical University

Most metal-organic frameworks(MOFs) hardly maintain their physical and chemical properties after exposure to acidic,neutral,or alkaline aqueous solutions,resulting in insufficient stability,therefore limiting their ***,the design and synthesis of stable size/morphology-controlled MOF nanocrystals is critical but *** this study,dual-ligand and hard-soft-acid-base strategies were used to fabricate a variety of 3D pillared-layer [Ni(thiophene-2,5-dicarboxylate)(4,4’-bipyridine)]nMOF nanocrystals(1D nanofibers,2D nanosheets and 3D aggregates) with controllable morphology by varying the concentration of 4,4’-bipyridine and thus controlling the crystal growth *** to the shorter ion diffusion length,enhanced ele ctron/ion transfer and strong interactions between thiophene-2,5-dicarboxylate and4,4’-bipyridine,the 2D nanosheets showed much larger specific capacitance than 1D nanofibers and 3D aggregates.A single device with an output voltage as high as 3.0 V and exceptional cycling performance(95% of retention after 5000 cycles at 3 mA cm-2) was realized by configuring two aqueous asymmetric super capacitive devices in *** excellent cycling property and charge-discharge mechanism are consistent with the hard-soft-acid-base theory.

关键词： metal-organic framework dual ligand hard-soft-acid-base electrochemical energy storage supercapacitor

The introduction of cobalt element into nickel-organic framework for enhanced supercapacitive performance

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Chinese Chemical Letters 2023年第7期34卷 303-307页

作者： Xinxin Hang Rui Yang Yadan Xue shasha zheng Yuying Shan Meng Du Jiawei Zhao Huan Pang School of Chemistry and Chemical Engineering and Institute for Innovative Materials and Energy Yangzhou UniversityYangzhou 225009China

Metal-organic frameworks(MOFs) as promising electrodes for supercapacitors are attracting increasing research interest. Herein, we report an effective strategy to improve the electrochemical performance of Ni-MOF for supercapacitor by introducing a secondary Co ion. The Co substitution of Ni in Ni-MOF can improve the intrinsic reactivity and stability. As a result, the bimetallic Co/Ni-MOF-1:15 with an optimal Co/Ni ratio delivers high specific capacitance(359 F/g at 0.5 A/g), good rate performance(81.5% retention at 5 A/g) and cycling stability(81% retention after 5000 cycles). These results demonstrate that the bimetallic synergistic strategy is an effective way to improve the pseudocapacitive performance of MOFs.

关键词： Metal-organic frameworks Bimetallic Cobalt-nickel synergistic effect Micro/nanostructures Supercapacitors

Recent advances in the application of MXenes for neural tissue engineering and regeneration

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Neural Regeneration Research 2024年第2期19卷 258-263页

作者： Menghui Liao Qingyue Cui Yangnan Hu Jiayue Xing Danqi Wu shasha zheng Yu Zhao Yafeng Yu Jingwu Sun Renjie Chai State Key Laboratory of Digital Medical Engineering Department of Otolaryngology Head and Neck SurgeryZhongda HospitalSchool of Life Sciences and TechnologyAdvanced Institute for Life and HealthJiangsu Province High-Tech Key Laboratory for Bio-Medical ResearchSoutheast UniversityNanjingJiangsu ProvinceChina Co-Innovation Center of Neuroregeneration Nantong UniversityNantongJiangsu ProvinceChina Department of Oto-Rhino-Laryngology West China HospitalSichuan UniversityChengduSichuan ProvinceChina First Affiliated Hospital of Soochow University SuzhouJiangsu ProvinceChina Department of Otolaryngology-Head and Neck Surgery The First Affiliated Hospital of USTCDivision of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiAnhui ProvinceChina Department of Otolaryngology Head and Neck Surgery Sichuan Provincial People’s HospitalUniversity of Electronic Science and Technology of ChinaChengduSichuan ProvinceChina Institute for Stem Cell and Regeneration Chinese Academy of SciencesBeijingChina Beijing Key Laboratory of Neural Regeneration and Repair Capital Medical UniversityBeijingChina

Transition metal carbides and nitrides(MXenes)are crystal nanomaterials with a number of surface functional groups such as fluorine,hydroxyl,and oxygen,which can be used as carriers for proteins and *** have excellent biocompatibility,electrical conductivity,surface hydrophilicity,mechanical properties and easy surface ***,at present,the stability of most MXenes needs to be improved,and more synthesis methods need to be *** are good substrates for nerve cell regeneration and nerve reconstruction,which have broad application prospects in the repair of nervous system *** the application of MXenes in neuroscience,mainly at the cellular level,the long-term in vivo biosafety and effects also need to be further *** review focuses on the progress of using MXenes in nerve regeneration over the last few years;discussing preparation of MXenes and their biocompatibility with different cells as well as the regulation by MXenes of nerve cell regeneration in two-dimensional and three-dimensional environments in *** have great potential in regulating the proliferation,differentiation,and maturation of nerve cells and in promoting regeneration and recovery after nerve *** addition,this review also presents the main challenges during optimization processes,such as the preparation of stable MXenes and long-term in vivo biosafety,and further discusses future directions in neural tissue engineering.

关键词： hydrogels MXenes nerve regeneration neural cells neural stem cells organoids spiral ganglion neurons

Damping capacity of amorphous carbon fiber/aluminum matrix composites at room temperature

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Rare Metals 2007年第S1期26卷 115-119页

作者： LI Aibin,WANG Hongmei,LI shasha,and zheng Peiqi School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,China Harbin Inst Technol Sch Mat Sci & Engn Harbin 150001 Peoples R China

The influence of volume fraction on damping capacities at room temperature for amorphous carbon fiber reinforced aluminum matrix composites was *** room temperature,the dislocation damping is the primary damping ***,the dislocation damping exhibits dynamic hysteresis at low strain amplitudes and static hysteresis at high strain ***,the damping capacity is rather sensitive to the volume *** to unreinforced aluminum alloy,the additions of amorphous carbon fibers into the aluminum matrix can improve damping capacity below the volume fraction of 30%,whereas worsen above the volume fraction of 40%.

关键词： carbon fiber aluminum matrix composite damping capacity volume fraction

Distributed optimal consensus control for multiagent systems based on event-triggered and prioritized experience replay strategies

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Science China(Information Sciences) 2025年第1期68卷 306-321页

作者： Cuijuan ZHANG Lianghao JI shasha YANG Xing GUO Huaqing LI Chongqing Key Laboratory of Image Cognition Chongqing University of Posts and Telecommunications Key Laboratory of Intelligent Perception and Computing of Anhui Province Anqing Normal University College of Electronic and Information Engineering Southwest University

This study uses event-triggered(ET) and reinforcement learning methods to investigate the optimal consensus control problem for cooperative-competitive multiagent systems. It proposes a novel distributed ET control strategy, which relies on a prioritized experience replay(PER) policy. This strategy not only conserves communication resources but also ensures acceptable system performance. To implement the proposed method, actor-critic(AC) dual-structured neural networks(NNs) are used to approximate the value function and control policy. In the AC NNs, the weight estimates for the NNs are updated at the moment of event triggering, resulting in a nonperiodic weight adjustment pattern. This approach decreases the computational cost in comparison with the traditional ET mechanism. The PER-based ET mechanism makes full use of valid historical data and effectively establishes a balance between system performance and communication resource ***, it does not require the following two conditions in most existing studies:(1) requirement of the system dynamics model to be known, and(2) persistent excitation. In addition, Zeno behavior is excluded from this study. Finally, a simulation is conducted to confirm the validity of the suggested approach.

关键词： multiagent systems event-triggered mechanism prioritized experience replay dual-structured neural networks optimal consensus control

Echinacea putpurea extract polarizes M1 macrophages in murine bone marrow-derived macrophages through the activation of JNK

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Echinacea putpurea extract polarizes M1 macrophages in murin...

吡啶调节2D双金属有机框架及其电催化析氧性能研究（英文）

中国畜牧兽医学会动物微生态学分会第五届第十三次全国学术研讨会

作者： Aikun Fu Yang Wang Yanping Wu Hongliang Chen shasha zheng Yali Li Xin Xu Weifen Li Key Laboratory of Animal Molecular Nutrition of Education of Ministry College of Animal SciencesZhejiang University Key Laboratory of animal feed and nutrition of Zhejiang Province Shandong Qilu Animal Health Co. Ltd California Baptist University

Echinacea purpurea is an indigenous North American purple cone flower used by North Americans for treatment of various infectious diseases and *** study investigated the effect of polysaccharide enriched extract of Echinacea purpurea(EE) on the polarization of *** results showed that 100 μg/mL of EE could markedly activate the macrophage by increasing the expression of CD80,CD86,and MHCII ***,EE upregulated the markers of classically activated macrophages(Ml) such as CCR7 and the production of IL-1β,IL-6,IL-12 p70,TNF-αand *** functional tests showed that EE enhanced the phagocytic and intracellular bactericidal activity of macrophage against ***,we demonstrated that JNK are required for EE-induced NO and M1-related cytokines ***,these results demonstrated that Echinacea purpurea can polarize macrophages towards Ml phenotype,which is dependent on the JNK signaling pathways.

关键词： Echinacea purpurea inflammation JNK macrophage polarization

来源： cnki会议评论

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Science China Materials 2021年第1期64卷 137-163页

作者：柏杨张光勋郑莎莎李清庞欢徐强 School of Chemistry and Chemical Engineering Yangzhou University Guangling College Yangzhou University

二维金属有机骨架（2D MOF）具有较大的比表面积和较高的活性位点密度,是改善电催化性能的理想载体.通过简单的制备方法获得2D纳米结构受到了广泛的关注.本文提出了一种吡啶调节溶剂热合成方法,用于合成镍/钴双金属MOF纳米片.得到的MOF... 详细信息

二维金属有机骨架（2D MOF）具有较大的比表面积和较高的活性位点密度,是改善电催化性能的理想载体.通过简单的制备方法获得2D纳米结构受到了广泛的关注.本文提出了一种吡啶调节溶剂热合成方法,用于合成镍/钴双金属MOF纳米片.得到的MOF材料具有矩形2D形貌,厚度约20纳米.这些纳米片作为电催化剂在碱性条件下表现出析氧反应（OER）活性.其中, Ni;Co;-bpy（PyM）在1.0 mol L;KOH溶液中、电流密度10 mA cm;时过电位低至256 mV, Tafel斜率为81.8 mV dec;,且具有良好的电化学稳定性.对催化反应后的电极材料研究表明, Ni;Co;-bpy（PyM）的高催化活性来源于原位形成的活性氢氧化物和羟基氧化物.该研究为2D MOF材料的可控合成及其与电催化性能构效关系的研究提供了理论基础.

关键词： metal-organic framework bimetallic MOF nanoplate electrocatalysis oxygen evolution reaction

Platforms for Prosperity China’s platform giants are poised to drive the next wave of economic growth

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ChinAfrica 2025年第1期17卷 49-51页

作者： ZHANG shasha Beijing Review

On 20 April 1994,China made its first o!cial full-function connection to the World Wide Web through a 64-kilobyte international leased line,marking the country’s formal entry into the global digital *** year 2024 mar... 详细信息

关键词： Platform internet formal